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Bhardwaj R, Wolterbeek HT, Denkova AG, Serra-Crespo P. Solid phase extraction-based separation of the nuclear isomers 177mLu and 177Lu. Appl Radiat Isot 2020; 164:109264. [DOI: 10.1016/j.apradiso.2020.109264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 04/21/2020] [Accepted: 06/01/2020] [Indexed: 10/24/2022]
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Patil M, Keshav K, Kumawat MK, Bothra S, Sahoo SK, Srivastava R, Rajput J, Bendre R, Kuwar A. Monoterpenoid derivative based ratiometric fluorescent chemosensor for bioimaging and intracellular detection of Zn2+ and Mg2+ ions. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2018.07.015] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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3
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The Asymmetry is Derived from Mechanical Interlocking of Achiral Axle and Achiral Ring Components –Syntheses and Properties of Optically Pure [2]Rotaxanes–. Symmetry (Basel) 2018. [DOI: 10.3390/sym10010020] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
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Gangoda ME, Wijekoon A, Gregory RB, Khitrin AK. Multinuclear nuclear magnetic resonance spectroscopic and high-performance liquid chromatographic characterization of silica, grafted with specifically deuterated 4-((propylamino)methyl)benzoic acid. J Chromatogr A 2016; 1458:90-8. [DOI: 10.1016/j.chroma.2016.06.062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2016] [Revised: 06/16/2016] [Accepted: 06/18/2016] [Indexed: 11/15/2022]
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Chiral Supramolecular Selectors for Enantiomer Differentiation in Liquid Chromatography. Top Curr Chem (Cham) 2013; 340:73-105. [DOI: 10.1007/128_2013_452] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Mohammadzadeh Kakhki R. Application of crown ethers as stationary phase in the chromatographic methods. J INCL PHENOM MACRO 2012. [DOI: 10.1007/s10847-012-0158-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Hirose K, Miura S, Senda Y, Tobe Y. Amplification of enantioselectivity and sensitivity based on non-linear response of molecular wire bearing pseudo-18-crown-6 to chiral amines. Chem Commun (Camb) 2012; 48:6052-4. [DOI: 10.1039/c2cc30417a] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Synthesis and enantiomeric recognition ability of 22-crown-6 ethers derived from rosin acid and BINOL. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.tetasy.2011.02.014] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Development of silica-based stationary phases for high-performance liquid chromatography. Anal Bioanal Chem 2011; 399:3307-22. [DOI: 10.1007/s00216-010-4611-x] [Citation(s) in RCA: 101] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2010] [Revised: 12/10/2010] [Accepted: 12/13/2010] [Indexed: 10/18/2022]
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Hirose K, Yachi Y, Tobe Y. Novel chiral recognition beyond the limitation due to the law of mass action: highly enantioselective chiral sensing based on non-linear response in phase transition events. Chem Commun (Camb) 2011; 47:6617-9. [DOI: 10.1039/c1cc11731a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Ema T, Hamada K, Sugita K, Nagata Y, Sakai T, Ohnishi A. Synthesis and Evaluation of Chiral Selectors with Multiple Hydrogen-Bonding Sites in the Macrocyclic Cavities. J Org Chem 2010; 75:4492-500. [DOI: 10.1021/jo1006587] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tadashi Ema
- Division of Chemistry and Biochemistry, Graduate School of Natural Science and Technology, Okayama University, Tsushima, Okayama 700-8530, Japan
| | - Kazuki Hamada
- Division of Chemistry and Biochemistry, Graduate School of Natural Science and Technology, Okayama University, Tsushima, Okayama 700-8530, Japan
| | - Kyoko Sugita
- Division of Chemistry and Biochemistry, Graduate School of Natural Science and Technology, Okayama University, Tsushima, Okayama 700-8530, Japan
| | - Yohei Nagata
- Division of Chemistry and Biochemistry, Graduate School of Natural Science and Technology, Okayama University, Tsushima, Okayama 700-8530, Japan
| | - Takashi Sakai
- Division of Chemistry and Biochemistry, Graduate School of Natural Science and Technology, Okayama University, Tsushima, Okayama 700-8530, Japan
| | - Atsushi Ohnishi
- CPI Company, Daicel Chemical Industries, Ltd., Aboshi, Himeji, Hyogo 671-1283, Japan
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Immobilized-type chiral packing materials for HPLC based on polysaccharide derivatives☆. J Chromatogr B Analyt Technol Biomed Life Sci 2008; 875:2-11. [DOI: 10.1016/j.jchromb.2008.04.047] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2008] [Revised: 04/23/2008] [Accepted: 04/24/2008] [Indexed: 11/17/2022]
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Lakatos S, Fetter J, Bertha F, Huszthy P, Tóth T, Farkas V, Orosz G, Hollósi M. Preparation of a new chiral acridino-18-crown-6 ether-based stationary phase for enantioseparation of racemic protonated primary aralkyl amines. Tetrahedron 2008. [DOI: 10.1016/j.tet.2007.09.056] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Babić K, Driessen G, van der Ham A, de Haan A. Chiral separation of amino-alcohols using extractant impregnated resins. J Chromatogr A 2007; 1142:84-92. [DOI: 10.1016/j.chroma.2006.09.045] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2006] [Revised: 09/04/2006] [Accepted: 09/07/2006] [Indexed: 10/24/2022]
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Yongzhu J, Hirose K, Nakamura T, Nishioka R, Ueshige T, Tobe Y. Preparation and evaluation of a chiral stationary phase covalently bound with a chiral pseudo-18-crown-6 ether having a phenolic hydroxy group for enantiomer separation of amino compounds. J Chromatogr A 2006; 1129:201-7. [PMID: 16872621 DOI: 10.1016/j.chroma.2006.07.003] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2006] [Revised: 07/04/2006] [Accepted: 07/04/2006] [Indexed: 11/15/2022]
Abstract
In order to develop a chiral stationary phase (CSP), which has even higher separation ability than the corresponding commercially available crown ether based CSP (OA-8000 having a pseudo-18-crown-6 ether with an OMe group as a selector), chemically bonded type CSP having a phenolic OH group on a crown ring was developed. Normal mobile phases with or without acid additive can be used with this OH type CSP in contrast to the conventional OMe type CSP which has a neutral chiral selector. Enantiomers of 25 out of 27 amino compounds, including 20 amino acids, 5 amino alcohols, and 2 lipophilic amines, were efficiently separated on a column with this CSP. Nine amino compounds out of 27 were separated with better separation factors than the corresponding OMe type CSP. It is noteworthy that the chromatography on this CSP exhibited excellent enantiomer-separations for amines and amino alcohols when triethyl amine was used as an additive in the mobile phase. Comparison of enantiomer separation ability on this OH type of CSP and on the OMe type of CSP and correlation between the enantioselectivity in chiral chromatography and that of the corresponding model compounds in solution imply that the chiral separation arose from chiral recognition in host guest interactions.
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Affiliation(s)
- Jin Yongzhu
- Division of Frontier Materials Science, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, Japan
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Hyun MH. Preparation and application of HPLC chiral stationary phases based on (+)-(18-crown-6)-2,3,11,12-tetracarboxylic acid. J Sep Sci 2006; 29:750-61. [PMID: 16830487 DOI: 10.1002/jssc.200500431] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Preparation of liquid chromatographic chiral stationary phases (CSPs) based on (+)-(18-crown-6)-2,3,11,12-tetracarboxylic acid and their application are reviewed. The various methods of connecting (+)-(18-crown-6)-2,3,11,12-tetracarboxylic acid to silica gel covalently or dynamically are demonstrated. The CSPs based on (+)-(18-crown-6)-2,3,11,12-tetracarboxylic acid have been very successful for the resolution of various primary amino compounds with the use of an aqueous mobile phase containing organic and acidic modifiers. In addition, the resolution of secondary amino compounds including beta-blockers and N-(3,5-dinitrobenzoyl)-alpha-amino acids has been demonstrated on a CSP based on (+)-(18-crown-6)-2,3,11,12-tetracarboxylic acid with a non-aqueous mobile phase.
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Affiliation(s)
- Myung Ho Hyun
- Department of Chemistry, Chemistry Institute for Functional Materials, Pusan National University, Busan, Republic of Korea.
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Steensma M, Kuipers NJM, De Haan AB, Kwant G. Identification of enantioselective extractants for chiral separation of amines and aminoalcohols. Chirality 2006; 18:314-28. [PMID: 16534799 DOI: 10.1002/chir.20258] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The major obstacle for the introduction of fractional reactive extraction as a chiral separation method in the chemical and pharmaceutical industries is the lack of versatile enantioselective extractants. Therefore, a rational approach is developed to transfer the extensive knowledge of chiral selectors reported in the literature on chiral recognition and other chiral separation techniques to extraction. Based on a similarity in separation mechanisms, it was expected that chiral selectors originating from a technique in which chiral recognition takes place in the liquid phase are most likely to function as enantioselective extractant. Using this approach, a selection of promising extractants was made from the literature and experimentally evaluated for the enantioseparation of aminoalcohols and amines. As a result, four enantioselective extractant systems, namely, dibutyl-L-tartrate with boric acid, N-(2-hydroxydodecyl)-L-hydroxyproline Cu(II) complex, N-dodecyl-L-hydroxyproline Cu(II) complex, and azophenolic crown ether, have been identified. The azophenolic crown ether system performed the best and demonstrated an enantioselectivity between 1.3-5.0 for five out of six test compounds. Identification of the enantioselective extractant systems was highly facilitated by the developed rational transfer approach that, although partially qualitative, appeared capable of reducing more than 50 encountered candidates to only three promising systems for further experimental evaluation. Therefore, it is expected that this approach can be successfully applied to identify enantioselective extractants for other classes of enantiomers as well.
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Affiliation(s)
- Maartje Steensma
- Separation Technology Group, Department of Science & Technology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
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Hirose K, Yongzhu J, Nakamura T, Nishioka R, Ueshige T, Tobe Y. Preparation and evaluation of a chiral stationary phase covalently bound with chiral pseudo-1 8-crown-6 ether having 1-phenyl-1,2-cyclohexanediol as a chiral unit. J Chromatogr A 2005; 1078:35-41. [PMID: 16007979 DOI: 10.1016/j.chroma.2005.04.071] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A chiral stationary phase (CSP) has been prepared by chemically bonding a chiral pseudo-18-crown-6 type host having a 1-phenyl-1,2-cyclohexanediol unit to 3-aminopropyl silica gel. The chiral column was prepared by the slurry-packing method in a stainless steel HPLC column. Normal mobile phases can be used with this CSP in contrast to conventional dynamic coating type CSPs. Enantiomers of 20 out of 30 amino compounds, including 20 amino acids, 2 amino acid methyl esters, 6 amino alcohols, and 2 lipophilic amines, were efficiently separated on columns with this CSP. It is noteworthy that 15 amino compounds out of 30 were separated with better separation factors and shorter retention times compared to the corresponding CSP having pseudo-18-crown-6 with 1-phenyl-1,2-ethanediol as a chiral unit. In view of the correlation between the enantiomer selectivities observed in chromatography and those obtained in gas phase FABMS-EL methods and solution phase titrations, chiral recognition in the host-guest interaction likely contributes to enantiomer separation.
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Affiliation(s)
- Keiji Hirose
- Division of Frontier Materials Science, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan.
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Newkome GR. Chapter 8 Eight-membered and larger rings. A CRITICAL REVIEW OF THE 2003 LITERATURE PRECEDED BY TWO CHAPTERS ON CURRENT HETEROCYCLIC TOPICS 2005. [DOI: 10.1016/s0959-6380(05)80059-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Hirose K, Yongzhu J, Nakamura T, Nishioka R, Ueshige T, Tobe Y. Chiral stationary phase covalently bound with a chiral pseudo-18-crown-6 ether for enantiomer separation of amino compounds using a normal mobile phase. Chirality 2005; 17:142-8. [PMID: 15704196 DOI: 10.1002/chir.20138] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
In order to apply the excellent chiral recognition ability of chiral pseudo-18-crown-6 ethers that we developed to chiral separation, we prepared a chiral stationary phase (CSP) by immobilizing a chiral pseudo-18-crown-6-type host on 3-aminopropyl silica gel. A chiral column was prepared by the slurry-packing method in a stainless steel HPLC column. A liquid chromatography system using this CSP combined with the detection by mass spectrometry was used for enantiomer separation of amino compounds. A normal mobile phase can be used on this CSP as opposed to conventional dynamic coating-type CSPs. Enantiomers of 18 common natural amino acids were efficiently separated. The chiral separation observed for amino acid methyl esters, amino alcohols, and lipophilic amines was fair using this HPLC system. In view of the correlation between the enantiomer selectivity observed in chromatography and the complexion in solution, the chiral recognition in host-guest interactions might contribute to this enantiomer separation.
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Affiliation(s)
- Keiji Hirose
- Division of Frontier Materials Science, Graduate School of Engineering Science, Osaka University, Osaka, Japan
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Hirose K, Tobe Y, Aksharanandana P, Suzuki M, Wada K, Naemura K. Remarkable Effect of Subtle Structural Change of Chiral Pseudo-18-Crown-6 on Enantiomer-Selectivity in Complexation with Chiral Amino Alcohols. HETEROCYCLES 2005. [DOI: 10.3987/com-05-s(k)42] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Gokel GW, Leevy WM, Weber ME. Crown ethers: sensors for ions and molecular scaffolds for materials and biological models. Chem Rev 2004; 104:2723-50. [PMID: 15137805 DOI: 10.1021/cr020080k] [Citation(s) in RCA: 1069] [Impact Index Per Article: 53.5] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- George W Gokel
- Department of Molecular Biology & Pharmacology, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8103, Saint Louis, Missouri 63110, USA.
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